Biology with the Earth, the sun, the moon's cyclical changes, gradually, a cyclical, rhythmic behavior is rhythmic behavior. Such as circadian rhythms, lunar rhythms, seasonal rhythms and so on. Some organisms about once every 24 hours cyclical rhythm, this activity, physical function associated with the Earth's day and night, called a circadian rhythm, such as the diurnal (bees, butterflies, songbirds), nocturnal (rats, bats owl), a diurnal difference (Nighthawk). Rhythm on the activities of many marine animals, and that tide, the tide falls linked. Tides with the moon's gravity displacement cycle of fluctuation phenomena occur. Animals living in the activities of the intertidal zone law, most compatible with the tidal regime. Such as barnacles, oysters and other food in the water at high tide, crabs climb out of the cave at low tide on the beach feeding and so on. Some creatures change with the seasons, the cyclical behavior occurs as seasonal rhythm. For example, many birds move south ahead of winter warm winter areas, amphibians, reptiles to hibernate all winter, the behavior of migratory behavior of fish there.
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No. 2
Biology with the Earth, the sun, the moon's cyclical changes, gradually, a cyclical, rhythmic behavior is rhythmic behavior. Such as circadian rhythms, lunar rhythms, seasonal rhythms and so on. Some organisms about once every 24 hours cyclical rhythm, this activity, physical function associated with the Earth's day and night, called a circadian rhythm, such as the diurnal (bees, butterflies, songbirds), nocturnal (rats, bats owl), a diurnal difference (Nighthawk). Rhythm on the activities of many marine animals, and that tide, the tide falls linked. Tides with the moon's gravity displacement cycle of fluctuation phenomena occur. Animals living in the activities of the intertidal zone law, most compatible with the tidal regime. Such as barnacles, oysters and other food in the water at high tide, crabs climb out of the cave at low tide on the beach feeding and so on. Some creatures change with the seasons, the cyclical behavior occurs as seasonal rhythm. For example, many birds move south ahead of winter warm winter areas, amphibians, reptiles to hibernate all winter, the behavior of migratory behavior of fish there. Animals, activities and physiological functions associated with the Earth's day, such as various bees, songbirds and the majority of mammals are diurnal, and mice, bats, owls are nocturnal animals, many animals such as Nighthawk in the morning or evening activities, said the diurnal animals, which is a 24-hour cycle phenomenon. Activities of marine animals associated with the ebb tide, it is with animals, feeding, breeding and other related acts Xixi. Such as oysters and other marine animals feeding at high tide, but the crab is to wait until low tide, after a lot of feeding, apparently living in the intertidal zone of the activity rhythm of animals, mostly compatible with tidal regularity, known as the lunar rhythm. There are seasonal rhythm of the animals such as birds and mammals in temperate regions and more in the spring breeding mammals molting in the spring and autumn, tropical animals appear aestivation, hibernation and cold animals there are seasonal bird migration and other rhythms. These rhythms are the internal procedures the animals gradually unfolding. Many experts believe that migratory birds, especially the behavior of a firm decision on the internal rhythm of a bird, and all the inherent rhythm and it must coincide with the natural rhythm of the outside world, this is the result of long-term adaptation in nature.